A fifth way to ensure that your EdTech design is cost-effective and sustainable is to evaluate and document your outcomes and impacts, both qualitatively and quantitatively. Evaluation means measuring and assessing the effectiveness, efficiency, and satisfaction of your solutions, both during and after the development process. Documentation means recording and reporting the results, insights, and lessons learned from your solutions, both for yourself and for others. For example, you can use tools like rubrics, portfolios, or dashboards to track and showcase your outcomes and impacts, such as learning gains, user feedback, or cost savings. You can also use tools like reports, case studies, or blogs to share and disseminate your outcomes and impacts, such as best practices, challenges, or recommendations. Evaluating and documenting your outcomes and impacts not only helps you improve and sustain your solutions, but also helps you demonstrate and communicate your value and contribution to the EdTech field.